Chuck mechanism for automatic



5m@ 2,1936. H W, RUPPLE 2,042,555

CHUCK MECHNISM FOR AUTOMATIC MACHINE'TOOLS @tft June 2, 1936.

H. w. RUPPLE CHUCK MECHANISM FOR AUTOMATIC MACHINE TOOLS Filed Jan. 2, 1932 6 Sheets-Sheet 2 Arroz/vers' June 2, 1936. H. w. RUPPLE CHUCK MECHANISMK FOR AUTOMATIC MACHINE TOOLS Filed Jan. 2, 1932 e sheets-sheet 5 #lm Arme/vers June 2, 1956. H W, RUPPLE 2,042,555

CHUCK MECHANISM FOR AUTOMATIC MACHINE TOOLS Filed Jan. 2, 1932 6 Sheets-Sheet 4 June 2, 1936. H, w. RUPPLE CHUCK MECHANISM FOR AUTOMATIC MACHINE TOOLS Filed Jan. 2, 1932 6 Sheets-Sheet 5 /A/L/E/vrae.' AQ? WPI/P245 y w. A7702 srs' 1 Filed Jan. 2, 1952 6 sheets-sheet e Patented June 2, 1936 UNITED STATES CHUCK MECHANISM' FOR 'AUTOMATIC MACHINE TOOLS Harry W. Rupple, Shaker Heights, Ohio, assigner to The Cleveland Automatic Machine Company, Cleveland, Ohio, a corporation of Ohio Application January 2, 1932, serial No. 584,421

37c1aims. (Giza-38) indexing said turret and operatingVV said motor i This invention relates to metal working machine tools and more particularly to the spindle driving and chuck operating mechanism of a multiple spindle indexible type of automatic chucking machine.

In machines of the general character referred to the work is usually supported in a chuck carried by a rotatable spindle supported in a rotatable spindle turret. A plurality of spindles are equally spaced about the axis of the spindle turret which is intermittently rotated to move the spindles and work from station to station where the necessary machining operations are performed upon the work by one or a plurality of tools. One of the stations is a loading station where the iinished work is removed and a new blank inserted either by manual or automatic means.

An object of the present invention is the provision of .a novel means for driving the spindles and operating the chucks of a machine tool of the type referred to. Y

Another object of the invention is the provision of a novel valve for controlling the flow of fluid to a fluid pressure motor.

Another object of the invention is the provision of a novel valve for controlling the flow of fluid pressure to a motor carried by an indexible turret and operatively connected to mechanism carried by said turret.

Another object of the invention is the provision of aV novel fluid pressure actuated means for operating mechanism connected to or carried, by the spindle of a machine of the type referred to, which will be simple and economic in construction and reliable in operation. 4

Another object ofthe invention is the provision of iiuid pressure means for opening and closing a chuck, carried by a turret and indexed through a plurality of stations, while the turret is stationary with the chuck in the loading station.

Another object of the invention is the provision of a novel metal working indexible type of automatic machine having a uid pressure motor carried by the spindle and a means for controlling the iiow of pressure to the motor mounted in axial alignment with the spindle turret.

Another object of the invention isv the provision of a machine having an indexible turret and one -or a plurality of chucks carried thereby, fluid pressure operated motor carried by said turret for opening and/or closing said chucks, means for while the turret is stationary.

Further objects and advantages'of thefinven;Y

Vtion will be apparent to those skilledin the art from the following description of the preferred embodiment of the invention described with reerence to the accompanyingdrawings, in which Figure 1 is a front elevational view oi the spindle end of a machine tool embodying'the present invention; Y -ai Fig. 2 is a .view similar to Fig. 1 with theV right hand part shown in section on Athe line 2 2 .of Figs. 4 and 5 and the left hand partshowinga section on the vertical centerline of thermachine; Fig. 3 is a detailed View of a portion of-the valve mechanism shown -in section onthefline- 2-2 ofFigs.4`and5; j v Fig. 4 is an end velevation of the machinelooking from the left as viewed in Figs. land 2;

Fig. 5 is a sectional View taken on the line 5,-5 OfFg. 1; Y I i y; j s

Fig. 6 is a detailed sectional view of one-,of the fluid pressure motors carried by the spindlesof the machine; i j. Y fr.

Fig. 7 is a sectional view of thev `controlvalve taken on the line '1 -'l of Fig. S-With, portions shown in elevation; therrelative,positionofnthe parts being the saine as thatl shown in Figs.- 1

and 2; f

Fig. 8 is an end View of the control valvejvlooking from theright as viewed in Fig. f7; c .Fig 9 is a sectional view of the controlvalve taken on the line 9-9'of Fig.7; f v if.

Fig. 10 is a sectional View ofthe controlvalve taken on the line IU-I of Fig. 7; Fig. l1 is a sectional View of the control yvalve taken on the line lI-ll of Fig. 7; Y

Fig. 12 is a sectional View of lthe controlvalve similar to Fig. 9, but with the valve in a 'diier'ent operating position; Fig. 13 is a sectional View of thecontrol Yvalve .similar to Fig. 10, but with the valve in theposition shown in Fig. 12; and

Fig. 14 is asectional View of the control valve tion shown in Figs. 12 and 13. f Y. Similar reference characters indicate corre'- sponding parts throughout the several ligure's of the drawings'.

simnar to Fig. 11, but witn'the valve 1 me psi- Referring to the drawings, reference character y IIJ designates the bed of an automatic metal working machine toolV of a well known type.l Only the work spindle end of theV machine is illustrated, the remainder of the machine being old in the'. art and found in a plurality of different embodiments. A spindle head II formed integral with one end of the bed I0 and including a cap member I2, rotatably supports a spindle turret I3 by means of bearings I4 and I5 formed on the interior thereof. Longitudinal movement of the spindle turret I3 in the bearings I4 and I5 is prevented by a flange I6 formed integral with one end of the turret and a detachable ring I1 secured to the other end in any suitable manner. Aplurality of work spindles A, in the present instance four, are rotatably supported in suitable longitudinal apertures in the spindle turret I3, equally spaced'about the axis of the turret. In Fig. 2 the upper front spindle does not show and rthe lower front spindle is shown partly in section. The spindles A are identical in construction and include a spindle tube 2I rotatably supported in tapered bearings 22 and 23 provided with m'eans to take up wear and a thrust bearing 24 to take the end thrust of the spindle. The means shown for supporting the spindles A is similar to that shown in Ymy copending application Serial No. 579,518, led December 7, 1931.

`The spindle tube 2I carries on the right hand end thereof, as viewed in Figs. 1 and 2, a chuck Y 25, the jaws 26 of which are opened and closed by mechanism indicated in general by the reference character 21, upon longitudinal reciprocation of a shaft or rod 2'8. TheV shaft 28 is supported at one end by the chuck 25 and at the other end is operatively connected by means of a coupling 29 to a piston 3l)l of a fluid pressure motor 3|I carried on the left hand end of the spindle tube 2I. The motor Y3| is provided with a longitudinally projecting flange portion 32 of reduced diameter which is threaded onto the spindle tubel 2I-as at `33 and locked in any predetermined position by a lock member 34.

Fluid under pressure is conducted to and exhausted from opposite sides of the piston 38 by means of flexible tubes 35 and 36 communicating with' opposite sides ofthe piston through Yports 31 and 38 respectively, and couplings 39 rotatably Y supported on a tubular member I9 fixed' to the motor 3|. fluid under pressure is admitted through tube 35 and port 3T to the left hand side of the piston, as viewed in Figs. 1, 2 and 6, with the right hand Vside opened to exhaust through tube 36 and port 38, the-piston 30, together with the shaft 28, is moved'to the right and the chuck jaws 26 opened. When tube 36 is connected to the source of'pres- Vsure'and tube 35 opened to exhaust, the piston 30 and shaft 28 are movedV in the reverse direction and the chuck jaws 26 closed. The valve Y for controlling the flow of fluid pressure to and from Y the motor 3| will be hereinafter described.

The spindles A are driven from a gear 40 keyed to the end of a shaft 4I extending through the center of the spindle turret I3 and driven from the main drive of the machine in a well known manner.Y A gear 42 continuously in mesh with Ygear 40:,.is rotatably mounted by means of suitable bearing members on an enlarged end of a sleeve member 43 threaded on the exterior ofthe spindle tube 2|.

The spindle tube 2I is driven from the gear 42 through a friction disk clutch 44, opposite disks o fwhich are carried by a longitudinally extending flange 45 formed integral with the gear 42 and the sleeve member43. Pressure is applied to the disks through a'member 46 slidably keyed to the sleeve memberA 43, by bellcrank levers 41, the long arms of which engage a cam surface 48 on a clutch thimble 49.` The bellcrank levers 41 are The construction is such that whenV the spindle'drive. .shoe member 66strikes the disk member 62 contioned. in the loading station. The spindle driving mechanism just described is similar to that shown and described in my copending application Serial No. 575,734, filed November 18, 1931, to which reference is made for a detailed description of the same. y

A tubular member 59 fixed at the left hand end, as viewed in Figs. l and 2, in a bracket 60 bolted or otherwise secured to a horn 6I of the bed I8 is supported at the other end in a disk member 62.

The disk member 62 is supported by the motors Y 3I and is provided with a plurality of openings through which thereduced portion 32 of the motors project. A shaft 64 is slidably supported in the interior of the tubular member 53 and projects fromV either end thereof. bearing member 65 is fixed to the interior of the tubular member 59 at one end thereof.

A pair of shoe members 66 and 61l slidably keyed to a reduced portion 68 of the shaft 64 are positioned to engage opposite sides of the flange 55 on the clutch thimble in the loading station which, as illustrated, is the lower front station, seeFigs. 2 and 5. Adjusting nut 69 and lock nut 10 retain the shoe members 66 and 61 in position on the reduced portion 68. A spring washer 1I is positioned between the shoe member 61 andthe nut 69 and a coil spring 12 surrounding the reduced portion 68 of the shaft 64 is positioned between the shoe members 66 andv 61 which continuously-urges these members apart. A finished as the shaft 64 is moved in that direction to re- 1 lieve the friction disk clutch 44 and disconnect After the surface 14 of Vthe tinued movement of the shaft 64 causes the flange 55 of the spindle thimble-49 to be clasped or pressed between the shoe members 66 and 61, through the spring washer 18 producing a braking effect on the spindle and quickly stopping the same.

Shaft 64 i'sreciprocated in timed relation to the other operations of the machine to disconnect the spindle positionedV in the loading station from the drive and apply the brake and'after a predetermined time to release the brake and connect the'spindle with .the drive bythe following mechanism.V A lever V15 pivotally' mounted on a pin 16 carried in projecting arm 11 formed integral with the bracket 66, has a forked upper end which projects on opposite sides of a rectangular end 18 formedon the shaft 64. The forked end of the lever 15 has open slots 19 formed therein into which ythe ends of a pin .carried by the part 18 of the shaft 64 projects. The lower end A suitable f of the lever 15 has a finished head 8l formed Y thereon which engages in a groove formed by two projections 82 and 83 on a member 84. The member-64 is slidably supported on a pair of rods 85V fixed in the bracket 66 and the spindle head I I. A member 86 also slidably supported on the rods' 85 is operatively connected to the member 84 by means of a rod 81 the'length of which may be adjusted in any suitable'manner. A cam roller 90 rotatably supported on apin 9| fixed to the member 86 engages in a cam trackr 92 formed on a cam drum 93 xed to the main cam shaft 94 of the machine.

The flow of fluid to and from the motors 3| carried by the spindles A is controlled by a single valve indicated in general by the reference character B rotatably mounted on the exterior of the tubular member 59 between two collars |02 and |03 held in any adjusted position on the tubular member 59 by set screws |04.

'Ihe inside valve member |05 of the valve Bl has an exterior conical surface provided with a plurality of ports or grooves |06, |01, and |08 and isrotatably mounted on the tubular member 59. An annular port or groove |09 is provided on the interior of the Valve member |05. Apertures ||0 and extending through' valve member |05 Ycommunicate with the port or groove |09 on the interior of the valve member and the exterior of the valve member and port or groove |01 respectively. Fluid under pressure is admitted to the valve B through a longitudinal port or aperture I3 formed in the wall of the tubular member 59 and openings ||4 communicating therewith and the port or groove |09 formed on the interior of the valve member |05. i

'Ihe port or aperture |3 is closed at the left hand end, as viewed in Fig. 2, by a plug ||5 and is connected to a source of fluid pressure (not shown) by a coupling ||6 threaded'into an opening in the casting 60. The coupling ||6 is provided with a reduced extension which fits into an opening in the wall of the tubular member 59 and is packed as at ||1 to prevent leakage, in any suitable manner.

'Ihe exterior valve member |20 of the valve B is rotatably mounted on the conical surface of the inside valve member |05 and is provided with radial ports or openings |2| to |32 inclusive, see Figs. '1 to 14 inclusive. The exterior valve member |20 has a ange |35 formed integral with the right hand end thereof which supports an annular member |36 bolted thereto, as by the bolts |31. Dowel pins |38 are used to locate the annular member |36 on the flange |35. 'The annular member |36 carries two projections |39 which extend between two adjacent motors 3| and engage the cylinders thereof. The construction is such that as the spindle turret is indexed the valve B is rotated therewith due tol the engagement of the projection |39 with the motors 3|.

A member |40 slidably keyed to the valve member |05 adjacent one end of the conical surface thereof, carries a hand grasp |4| and a gear sector |42 formed integral therewith. The member |40 is adjustable longitudinally of thev valve member |05 by means of a collar |43 threaded on the exterior of the valve member |05 to the left 'of the collar member |40. The collar |43 is held in any adjusted position by means of a set screw |44. An anti-friction bearing |45 supported on a reduced portion |46 of the valve member |20 is the exterior of the valve member |05. The ring |54 abuts against a shoulder |56 formed on the interior of the valve member |20 and the ring |55 is moved relative to the ring |54 by an annular member 51 threaded into the interiorV off the 3 5 Valve memberV |20 and provided with a flange |58 adapted to engage the ring |55. The annular member |51 is held in an adjusted position by means of a set screw |59.` A disk shaped member is threaded into the right hand end of 10j the valve member |20, as viewed in Fig. 7.'

Gear teeth formed on the gear sector |42 are continuously in mesh with gear teeth |66 on a gear sector |61 formed integral with a boss |68 keyed to a shaft |69. The shaft |69 is rotatably 15` supported at one end in a boss |10 formed integral with a projecting arm |1| of the bracket 60 and at the other end in suitable bearings in the spindle head The shaft |69 has an arm |13 keyed thereto inside of the spindle head The arm 20 |13 is connected by means of a link |14 extending through the side of the bed l0, to the lower end of a lever |15 pivoted between the ends thereof on a pin |16 carried by a bracket |11 bolted or otherwise secured to the bed l0 of the machine. 9.5

The upper end of the lever |15 has a hand graspY |18 formed thereon for manual operation of the same. Y

An arm |8|, see Fig. 4, formed integral with and projecting from the bracket 60 towards the 30 rear carries a bell crank lever |82 pivotally mounted on a pin |83 fixed in the end of the arm |8|. One arm of the bell crank lever |82 is connected to the gear sector |42 by means of a link or rod |84 pivotally connected to both the 35,; bell crank lever |82 and the gear sector |42. The other arm of the bell crank lever |82 carries a cam roller |85 rotatably mounted in the end thereof and in engagement with a face cam |86 fixed to the end of the cam drum 93 as by the 4Q. screws |81. The face cam |86 has three cam surfaces |88, |89 and |90 and the construction is such that the gear sector |42 and the interior valve member |05 of the valve B are rotated in a clockwise direction as view-ed in Figs. 4 and 9 45 to 14 inclusive from the position shown in Figs. 12, 13 and 14, hereafter referred to as the normal position'of the valve, ninety degrees in two movements of forty-five degrees each, upon each rotation of the cam shaft 94.

Ports |2| to 24 inclusive are spaced ninety degrees apart and are located adjacent the left hand end of the Yvalve member |20. Ports |25 t0 |28 inclusive are in the center of the valve member |29 vand ports |29 to |32 inclusive are ad- 5,5v

jacent the right hand end thereof. Ports |2| to |24 inclusive are connected' to the flexible tubes 35 which communicate with the left hand side of the motor 3| Ports 25 to 28 inclusive are open to the atmosphere and ports |29 to |32 inclusive 60 are connected to the flexible tube 36 which communicates with the right hand side of the motor 3|.

'Ihe port |06 extends about the periphery of the valve member |05 for a distance greater than 65 270 and is of suicient length towco'nnect the ports |2| etc. in the left hand end ofthe valve member |20 with the exhaust ports 25 etc. in the center of the valve member |20. Port ||0 is merely an opening extending through the valve member |05 midway betweenv the ends of port |06 and communicating with the lefthand ports |25 etc. only. Port |01 is an annular groove extending about the periphery of the interior valve member |05 a distance corresponding to 75 1 Y'1 to 11 inclusive.

Yport |06 and is in communication with the port |09 formed on the interior of the valve member |05 through the port or opening I I Port |08 is a longitudinally extending groove formed on the exterior of the valve member |05 in longitudinal alignment with port ||0 and of sufficient length to connect the right hand Vports |29 etc. with the exhaust ports |25 etc.

The machine is illustrated in the drawings except for Figs. 12, 13 and 14, with the lower front spindle in the loading station and at rest with the chuck opened. The normal position of the machine referred to above, is with all the spindles rotating and the chucks closed, a condition which exists during and for a short interval of time before and after each indexing operation. The position of the valve A immediately after the indexing operation is shown in Figs. 12, 13 and 14.

The operationV of the machine is as follows: .Assuming that the ports are inthe relative positions illustrated in Figs.Y 1 to 11 inclusive, the spindles A, except the one in the loading station, the lower front position, are rotating with the chuck closed. Thelower front spindle is stopped with the brake applied and the clutch 44 released. The valve B is in the position illustrated in Figs. Y The left hand end of the motors 3| onthe rotating spindles is connected to the 'exhaust ports |25, |26 and |28 through the flexible tubes andthe ports |2|, |22, |24 and |06. The right hand ends of the' motors 3| on the rotating spindles are connected to the fluid pressure supply line through the flexible tubes 36 andthe ports |29, |30, |32, |01, |09, etc. The left hand end of the motor 3| on the spindle in the loading station is connected to the fluid pressure supply through the flexible tube 35 the ports |23, |09 and I0. The right hand end of the motor 3| on the spindle in the loading station is connected to theV exhaust through the flexible tube 36 Vand the ports |3I, |08 and |21.

A Ywork blank is positioned in the chuck on the loading station either by manual or automatic means, and continued Voperation of the machine causes the cam roller |85 to ride on the high surface |90 of the cam plate |86 and rock the bell crank lever |82 moving the gear sector |42 and Ythervalve member |05 forty-live degrees in a'clockwise direction, as viewed in Figs. 4 and 9 to 14 inclusive.Y During this movement of the valve member |05 the fluid pressure remains con- Vnected Vto the right handend of the motors 3| on the revolving spindles, and the other ends of the motor remain open to exhaust; the flow of fluid to the motor on the station spindle is reversed causing the piston to move to the left and close the chuck. Y After the chuck closes to engage the work the spindle brake is released, and the clutch 44 engaged due to the movement of rod 64 and the shoes 66, 61. etc. under the control of the cam drum 93. The spindle turret is then indexed in a counter-clockwise direction to bring the following spindles into the loading station. As the spindle turret indexes the entire valve B, the gear sector -|42, the bell crank lever |82, andthe lever |15, areV rotated in the same direction ninety degrees dueY to the engagement of the projection |39 be- -tween the adjacent top and bottom motors 3|.

Upon the completionof this operation, the valve B Vis in the position illustrated in Figs. 12, 13 and 14, and the cam roller |85 is on YthelowersurfaceV |88 of the face cam |86. Y

The spindle just loaded has now moved to the upper front station Where the machining operation commences or continues as the case. may be. The spindle in the loading station is ready to have the finished work removed and a new blank loaded. The rod 64 together with the shoes 66 and 61 etc. moves to the left under the control of the cam drum.93, releasing the clutch carried by the spindle in the loading station and applying the b-rake to the spindle to quickly bring the same to rest. Since both valve members |05 and |20 rotate together during the indexing operation,

The valve moves from the position shown inV Figs..12, 13 and 14 to a positionsimilar to that shown in Figs. 9, 10 and 11, the only difference being that the valve member |20 together with the ports |29, |30, |3| and |32 have beenindexed ninety degrees in a counter-clockwise direction. As the relative positions of the ports are the same as illustrated in Figs. 9, l0 and l1, the direction of flow of iluid pressure to the motor 3| on the spindlel A in the loading station will be reversed J and the chuck carried by said spindle opened.

From the above disclosure it will be'apparent that as the cycle of operation of the machine continues the inside valve member |05 will be oscillated through an angle of ninety degrees, in a counter-clockwise direction with the indexing of the spindle turret and in the clockwise direc'- tion in two movements of forty-five degrees each under the control of the face cam |86. It will also be apparent that the exterior valve member |20 will be indexed through angles of ninety degrees with the indexing of the spindle turret. This indexing of the valve member |20'causes the different ports connected with anyV one motor 3| to successively pass through the bottom position as the motor 3| connected thereto is in the loading station.

While the invention has been disclosed as applied to a four spindle machine loaded at the lower front station, it is to be understood that it may be applied to a machine having one or a plurality of spindles and arplurality of stations', any one of which may be the loading station, and

the valve illustrated may be modified within the scope of this invention to control one or a plurality of motors. Although the fluid pressure motors carried by the spindles A are shown oper# a'tively connected to the chuck, they may be used to operate any mechanism carried by the spindles.

The preferred embodiment of the invention.

rotatably supported in said spindle turret, power means for drivingV said spindles, means carried by.

eachV spindle for connecting said power means to and. from said spindle, chucks carried by said spindles, means for operating said chucks, fluid pressure motors carried by said spindles and connected to one of said means. a stationary memaofiazsstv ber carried by said frame in axial alignment with said spindle turret, an inner valve member rotatably supported about said stationary member, an outer valve member rotatably supported about said inner valve member, means for simultaneously rotating said valve members concomitant With said spindle turret, meansfor moving said inner valve member in a reverse direction to the said simultaneous rotation, saidvalve members Ybeing provided with a plurality ofl ports adapted to control the flow of fluid pressure to said motors whereby the actuation of the motors is controlled.

2. In a machine of the character described, the combination of a stationary member, a valve member rotatably supported by said stationary member, a second Valve member rotatably supported by said stationary member, anv inlet port in said stationary member communicatingwith one of said valve members and adapted to be connected to a source of fluid supply, a plurality of ports in said second valve member adapted'to be connected to a plurality of motors, a plurality of ports in said valve member adaptedto direct the flowof fluid through said valve members, means for oscillating one of said valve members, and means for rotating one of said valve members.

3. In a machine of the character described, the combination of a frame, a spindle turret rotatably supported by said frame, a plurality of spindles rotatably supported in said spindle turret, a plurality of slidable members carried by said spindles, uid pressure motors carried by said spindles and connected to one of said slidable members, a stationary member carried'by said frame in axial alignment with said spindle turret, an inner valve member rotatably supported about said stationary member, an outer -valve member rotatably supported about said inner valve member, means for simultaneously rotating said valve members concomitant with the rotation of said spindle turret, and means for. moving said inner valve member in a reverse direction to saidsimultaneous rotation, said `valve member being provided with a plurality of ports adapted to control the ilow of fluid pressure to said motors.

4. In a machine of the character described, the combination of an indexible turret, a plurality of work engaging meanssupported by said turret, a plurality of fluid' presure operated means operatively connected to said work engaging means, a valve comprising two relatively movable parts and adapted to control the flow of fluid to a plurality of said motors, means for automatically indexing said valve as a unit with said turret, and automatic means for actuating said valve in predetermined timed Y relationk to the indexing of said turret. v

5. In a machine of the character described, the combination of an vindexible `spindle turret, a plurality of spindles supported by said spindle turret, each of said spindles. comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, a valve for controlling the flovvl of fluid to said motors adapted to operate said movable members in sequence, said valve comprising relatively movable parts indexible with said turret as aunit operatively connected to a plurality o'fsaid motors, and automatic means for moving said parts relative to each other.

6. In a machine of the character described, the combination of an indexible spindle turret, a plurality of spindles supportedby said spindle turret, each of said spindles comprising a movable member and a iluid pressure operated motoroperatively connected to said movable member, a valve comprising two relatively movable parts indexible with said turret as a unit operatively connected to a plurality of said motors adapted to control the ilow of iluid to said motors, and automatic means for producing a relative movement between the relatively movable parts of said valve to operate said motors in sequence. s

'7. In a machine of the character described, the combination of an indexible spindle turret, a plurality of spindles supported by said spindle tur-` ret, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, a valve comprising relatively movable members operatively connected to a plurality of said motors for controlling the flow of fluid t0 said motors, means for indexing said valve as a unit with said turret, and automatic means for producing a relative movement between said members in predetermined timed relation to the indexing of said turret.

i 8. In a machine of the character described, the combination of a frame, a cani shaft rotatably supported by said frame, a plurality of spindles rotatably supported by said frame, means for driving said spindles, a plurality of chucks supported by said spindles, a plurality of means for operating said chucks, a plurality of iluid pressure operated means supported by said spindles and operatively connected to one of said last mentioned means, a valve for controlling the flow of fluid to a plurality of said fluid pressure operated means, said valve having ports therein adapted to supply fluid to positively actuate said iiuid pressure operated means in different directions, and means for controlling said valve from said cam shaft.

9. Ina machine of the character described, the combination of a plurality of rotatable spindles, means for connecting and disconnecting said driving means to and from said spindles, chucks carried by said spindles, a fluid pressure motor carried by said spindles, means operatively connecting said fluid pressure motors and said chucks, a valve comprising relatively movable parts for controlling the flow of fluid to a plurality of said motors, said valve being provided with ports adapted to positively actuate said motors in opposite directions, and automatic means for actuating said valve in predetermined timed relation to the connecting and disconnecting of said driving means with said spindles.

l0. In a machine of the character described, the combination of a plurality of rotatable spindles, means for driving said spindles, a clutchv carried by each of said spindles adapted to connect and disconnect the same with said means, a chuck supported by each of said spindles, automatic means for operating said clutch at predetermined intervals, a fluid pressure motor operatively connected to each of said chucks, a valve for controlling the flow of fluid to a plurality of said motors, said valve being provided with ports adapted to supply fluid to positively operate said motors in opposite directions, and means for automatically controlling said valve whereby the same is operated in predetermined timed relation to the operation of said clutches.

11. In a machine of the character described, the combination of a frame, a plurality of spindles rotatably supported by said frame, means for driving said spindles, a brake adapted to be applied to each of said spindles, means for engaging and disengaging said driving means to and from said spindles and releasing and applying said brake, a chuck carried by each of said spindles, a fluid pressure operated motor carried by each of said spindles, means for operatively connecting said fluid pressure operated motors and said chucks, a valve for controlling the flow of iiuid. to a plurality of said fluid pressure operated motors, said valve having ports therein adapted to operate said fluid pressure operated motors positively in opposite directions, and automatic means for controlling the operation of said valve in predetermined timed relation to the operation of said-second mentioned means.

` 12. In a machine of the character described, the combination of a frame, a plurality of spindles-rotatably supported by said frame, means for driving said spindles, a brake adapted to be applied to each of said spindles, means for disengaging said-driving means successively from said spindles and applying the brake to the spindledisengaged, a chuck carried by each of said spindles, a fluid pressure motor carried by each of said spindles, means for operatively connecting said chucks and said fluid pressure motors, a valve for controlling the now of fluid to a plurality of'said motors, said Valve being provided With` ports whereby said motors are positively operated in opposite directions, and automatic means for operating said second mentioned means and Vsaid valve in predetermined timed relation. 13. In a machine of the character-described, the combination of a frame, a spindle turret rotatably supported by said frame, a cam shaft Y. rotatably supported by said frame, a spindle rotatably supported in said spindle turret and adapted to be indexed through a plurality of stations, a member movably supported by said spindle, a fluid pressure motor carried by said spindie and operatively connected to said member, valve means comprising relatively movable parts mounted coaxially with said turret for controlling the supply of fluid to said motor, and means operatively connected tosaid cam shaft for automatically controlling said valve means.

' 14. In a machine of the characterV described, the combination of a frame, a spindle turret rotatably supported by said frame, means for indexing said spindle turret, a cam shaft rotatably Y supported by said frame, a spindle rotatably supported by said spindle turret and adapted to be indexed through a plurality of stations, a member movably supported by said spindle, a fluid pressure motor carried by said spindle and operatively connected to said member, valve means comprising relatively movable parts mounted coaxially with said turret for controlling the supply of fluid to said motor, and means operatively connected to said cam shaft for automatically .actuating said valve means in predetermined timed relation with the indexing of said turret.

15. In a machine of the character described, the combination of a frame, a spindle turret rotatably supported by said frame, means for in- .dexin'g said spindle turret, a plurality of spindles rotatably supported by said spindle turret, a chuck carried by each of said spindles, a fluid pressure motor carried by each of said spindles,

means operatively connecting said fluid pressurev motors and said chucks, a valve comprising relatively movable parts for controlling the flow of fluid to a plurality of said motors, said valve being provided with ports adapted to control the flow of iiuid to positively act 'ate said motors in opposite directions, and aut matic means forI operating said valve in predetermined timed relation with the indexing of said turret.

16. In a. machine of the character described, the combination of a frame, a cam shaft rotatably supported by said frame, an indexible spindle turret rotatably supported by said frame, means operatively connected to said cam shaft and said turret for periodically indexing said turret, a plurality of spindles rotatably supported by said turret, a, chuck carried by each of said spindles, a fluid pressure motor carried by each of said spindles, means operatively connecting said fluid pressure motors and said chucks, a valve comprising relatively movable parts for controlling the flow of fluid to a plurality of said motors, and means operatively connecting said valve and said cam shaft adapted to operate said valve in predetermined timed relation to the indexing of said spindle turret.

17. In a machine of the character described, the combination of a frame, a cam shaft rotatably supported by said frame, a spindle turret rotatably supported by said frame, means operatively connected to said cam shaft and said spindle turret for automatically indexing said spindle turret, a plurality of spindles rotatably supported by said spindle turret, means for driving said spindles, means for connecting and disconnecting said means to and from said spindles, a plurality of chucks supported by said spindles, means supported by said spindles for operating said chucks, a plurality of fluid pressure operated means supported by said spindles and operatively connected to one of said last mentioned means, valve means for controlling the flow of uid t0 a plurality oi' said fluid pressure operated means, said valve means having a plurality of pairs of ports adapted to be serially connected to said fluid pressure operated means and means operatively connected to said cam shaft and said valve i means adapted to automatically actuate said valve means in predetermined timed relation to the indexing of said turret.

18. In a, machine of the character described, the combination o1' a. frame, a cam shaft rotatably supported by said frame, a spindle turret rotatably supported by said frame, means operatively connected to said cam shaft and said spindle turret adapted to periodically index said spindle turret, a plurality of spindles rotatably supported by said spindle turret, means for driving said spindles, clutch means for connecting and disconnecting said spindles with said means for driving said spindles, a chuck carried by each of said spindles, a fluid pressure operated motor carried by each of said spindles, means operatively connected to said fluid pressure operated motors and said chucks, a valve comprising relativelymovable parts adapted to control the flow of fluid to a plurality of said motors, and means operatively connecting saidv cam shaft and said valve for actuating said valve in predetermined timed relation to the indexing o1' said turret.

19. In a machine of the character described,

the combination of a frame, a cam shaft rotatf dle turret, a plurality of spindles rotatably supf ported by said spindle turret, means for driving said spindles, clutch means for connecting and disconnecting said spindles with said means, a chuck carried by each ofl said spindles, a fluid pressureoperated motor carried by each of said spindles, means operatively connected to said fluid pressure operated motors and said chucks, a valve comprising relatively movable parts supported coaxially with said turret for controlling the ow of fluid to a plurality of said motors, and means operatively connecting said cam shaft and said valve for automatically actuating said valve in predetermined timed relation to the indexing of said turret.

20. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted to be indexed through a plurality of stations, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, valve means comprising relatively movable parts for controlling the flow of fluid to said uid pressure operated motors, said valve means being provided with a plurality of pairs of ports adapted to be serially connected to said motors, and automatic means for producing relative` movement between movable parts of said valve means in predetermined timed relation to the indexing of said turret independently of the indexing thereof.

21. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted to be indexed through a plurality of stations one of which is a loading station, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, valve means comprising relatively movable parts for controlling the flow of fluid to said uid pressure operated motors, said valve means having ports adapted to supply uid to all of said motors and to selectively disconnect the supply of fluid to the fluid pressure operated motor in the loading station, automatic means for producing relative movement between certain of the relatively movable parts of said valve means upon the indexing of said turret, and means for automatically producing relative movement between other of said relatively movable parts independent of the indexing of said character.

22. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted to be indexed through aplurality of stations one of which is a loading station, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, valve means comprising relatively movable parts adapted to control the flow of fluid to said uid pressure operated motors, said valve means having ports adapted to control the supply of fluid to actuate all of said motors in one direction during the indexing of said turret and for selectively actuating the fluid pressure motor in the loading station in a reverse direction after the indexing of said turret, and means for automatically controlling said valve means in predetermined timed relation to the indexing of said turret.

23. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted to be indexed through a plurality of stations, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member,v valve means comprising relatively movable parts for controlling the flow of fluid to said motors, one of said parts being supported adjacent said turret and adapted to be indexed therewith, and another of said parts being supported adjacent said turret and adapted to' be moved relative to the rst mentioned of said parts, said first mentioned part being Aprovided with Yports communieating with one side of said fluid operated motors, said second mentioned part being provided with ports for supplying fluid to all of the ports in the rst of said parts and for disconnecting the supply of fluid selectively to one of the ports in the first of said parts, means independent of the rotation of said turret for moving said parts relative to each other, and means for automatically moving said parts relative to each other in predetermined timed relation to the indexing of said turret and independent thereof. 24. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably Supported by said turret and adapted to be indexed through a plurality of sta-1 25 tions, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, a valve member supported adjacent said turret and adapted to index therewith, said valve member being provided with ports communicating withY one side of said fluid pressure operated motors through which fluid is conducted to operate said motors in one direction, a second valve member supported adjacent said rst vvalve member and movable relatively thereto, said second valve member being provided with ports adapted to supply fluid to all of said ports in said rst valve member and for disconnecting the supply of fluid selectively to one of said ports in the rst valve member, and means for automatically producing relative movement between said valve members in predetermined timed relation to the indexing of said turret and independent thereof.

25. In a machine of the character described,

the combination of an indexible spindle turret, a plurality of slidable members supported by said turret, fluid pressure actuated means operatively connected to said slidable members, valve means comprising relatively movable parts proi vided with ports adapted to control the flow of iiuid to said fluid pressure actuated means, means for simultaneously moving a plurality of said parts with said turret, rand automatic means for producing relative movement between said parts in predetermined timed relation to the indexing of said turret.

26. In a machine of the character described, the combination of an indexible spindle turret,

a plurality of slidable members supported by said turret, fluid pressure actuated means operatively connected t0 said slidable members, valve means comprising two relatively movable parts provided with ports adapted to control the supply of fluid to said fluid actuated means,-means for simuls taneously rotating bothof said parts, means for rotating one of said parts relativeV to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret. 27. In a machine of the character described, the combination of an indexible turret, a plurality of chucks supported by said turret, luid pressure actuated means operatively connected to said chucks, valve means comprising two relatively movable parts provided with ports adapted to control the flow of fluid to said iluid pressure actuated means, means for moving both of said parts concomitant with said turret, means for moving one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

28. In a machine of the character described, the combination of an indexible turret, a plurality of chucks supported by said turret, fluid pressure actuated means operatively connected to said chucks, valve means comprising relatively movable parts provided with ports adapted to supply fluid to said fluid pressure actuated means, means for simultaneously moving a plurality of said parts, means for moving one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

29. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted t0 be indexed through a plurality of stations, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, a

'valve member supported coaxially with said turret and adapted to be indexed therewith, said valve member being provided with ports communicating with one side of said iluid operated motors through which fluid is conducted to operate said motors in -one direction, a second valve member supported coaxially with said turret and adjacent said first valve member, said second valve member being provided with ports adapted to supply iluid to all of said ports in said first valve member and for disconnecting the supply of iluid selectively to one of said ports in the rst valve member, and means for automatically moving said second valve member in predetermined timed relation to the indexing of said turret.

30. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of slidable members supported by said turret, a plurality of fluid pressure actuated means operatively connected to said slidable members, a valve supported adjacent said turret and comprising two relatively movable parts provided with ports adapted to control the ilow of fluid to a plurality of said fluid pressure actuated means, means for moving both of said parts concomitant with said turret, means for moving one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

31. In a machine of the character described, the combination of an indexible spindle turret, a plurality of slidable members supported by said turret, fluid pressure actuated means operatively connected to said slidable members, valve means supported coaxially with said turret and comprising two relatively rotatable parts provided with ports adapted to control the supply of fluid to said iluid actuated means, means for simultaneously rotating both of said parts, means for rotating one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

32. In a machine of the character described,

the combination of an indexible turret, a plurality of chucks supported by said turret, fluid pressure actuated means operatively connected to said chucks, valve means supported coaxially with said turret and comprising two relatively movable parts provided with ports adapted to control the flow of fluid to said fluid pressure actuated v means, means for indexing both of said parts with said turret, means for moving one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

33. In a machine of the character described, the combination of an indexible turret, a plurality of chucks supported by said turret, fluid pressure actuated means operatively connected to said chucks, valve means supported coaxially with said turret and comprising two relatively movable parts provided with ports adapted to supply fluid to said fluid pressure actuated means, means for moving both of said parts concomitant with said turret, means for moving one of said parts relative to the other, and means for automatically actuating said last mentioned means in predetermined timed relation to the indexing of said turret.

34. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles G rotatably supported by said turret and adapted to be indexed through a plurality of stations, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said movable member, valve means supported coaxially with said turret and comprising two relatively movable parts for controlling the flow of fluid to said fluid pressure operated motors, said valve means being provided with ports for supplying fluid to all of said motors and for selectively disconnecting the supply of fluid to one of said motors, andautomatic means for controlling said valve means in predetermined timed relation to the indexing of said turret and independent of the indexing thereof.

35. In a. machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turretV and adapted to be indexed through a plurality of stations one of which is a loading station, each of said spindles comprising a movable member and a fluid pressure operated motor operatively connected to said -movable member, valve means supported coaxial with said turret and comprising relatively movable parts for controlling the flow of fluid to said fluid pressure operated motors, said valve means having ports adapted to supply fluid to all of said motors and to selectively disconnect the supply of fluid to the fluid pressure operated motor in the unloading station, and automatic means for actuating said valve means in predetermined timed relation to the indexing of said turret and non-synchronous therewith.

36. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported bysaid turret and adapted to be indexed through a plurality of stations, each of said spindles comprising a movable member and a iluid pressure operated motor operatively connected to said member, valve means supported coaxially with said turret and comprising two relatively movable parts adapted to control the ilow of fluid to said fluid pressure operated motors, said valve means having ports for controlling the flow of liquid to actuate all of said motors in one direction and for selectively actuating one of said motors in a reverse direction, and automatic means for actuating said Valve means in predetermined timed relation to the indexing of said turret and independent thereof.

37. In a machine of the character described, the combination of an indexible spindle turret, means for indexing said turret, a plurality of spindles rotatably supported by said turret and adapted to be indexed through a plurality of stations one of which is a loading station, each of said spindles comprising a. movable member and a uid pressure operated motor operatively connected to said movable member, valve means supported coaxially with said turret and comprising two relatively movable parts adapted to control the 110W of fluid to said fluid pressure operated motors, said valve means having ports adapted to control the supply of fluid to actuate all of said motors in one direction during the indexing of said turret and for selectively actuating the fluid pressure motor in the loading station in a reverse direction after the indexing of said turret, and means for automatically actuating said valve means in predetermined timed relation to the indexing of said turret.

HARRY W. RUPPLE. 

